1. Find the standard deviation for the following data:57, 64, 43, 67, 49, 59, 44, 47, 61, 59 (answer in 2dp)*A. 8.16В. 8.18C. 8.13D. 8.202. A magazine printed a survey in its monthly issue and asked readers to fill it out and send it in. Over1000 readers did so. This type of sample is calledA. a cluster sampleB. a self-selected sampleC. stratified sample.D. simple random sample.3. Which of the following statements is the most accurate description for the concept of standarddeviation? *A. The average distance between a score and the mean.B. The square root of the total distance from the smallest score to the highest score.C. The total distance from the smallest score to the highest score.D. The squared average distance between all scores and the mean.3. A randomized experiment was done by randomly assigning each participant either to walk for halfan hour three times a week or to sit quietly reading a book for half an hour three times a week. At theend of a year the change in participants' blood pressure over the year was measured, and the changewas compared for the two groups. "The two treatments in this study were:A. Walking or reading a book for half an hour three times a week and having blood pressure measuresB. Walking or reading a book for half an hour three times a week and doing nothing.C. Having blood pressure measured at the beginning of the study and having blood pressure measuredat the end of the dayD. Walking for half an hour three times a week and reading a book for half an hour three times a weekC. Option 24. Suppose the mean and standard deviation of the GPA's of all currently registered students at acollege are mu = 2.70 and sigma = 0.50. The z-scores of the GPA's of two students, Antonio andBeatrice, are z = - 0.62 and z = 1.28 respectively. What is the GPA of Beatrice? *A. 2.39В. 2.34С. 3.34D. 3.39

Question

1. Find the standard deviation for the following data:57, 64, 43, 67, 49, 59, 44, 47, 61, 59 (answer in 2dp)*A. 8.16В. 8.18C. 8.13D. 8.202. A magazine printed a survey in its monthly issue and asked readers to fill it out and send it in. Over1000 readers did so. This type of sample is calledA. a cluster sampleB. a self-selected sampleC. stratified sample.D. simple random sample.3. Which of the following statements is the most accurate description for the concept of standarddeviation? *A. The average distance between a score and the mean.B. The square root of the total distance from the smallest score to the highest score.C. The total distance from the smallest score to the highest score.D. The squared average distance between all scores and the mean.3. A randomized experiment was done by randomly assigning each participant either to walk for halfan hour three times a week or to sit quietly reading a book for half an hour three times a week. At theend of a year the change in participants' blood pressure over the year was measured, and the changewas compared for the two groups. &#34;The two treatments in this study were:A. Walking or reading a book for half an hour three times a week and having blood pressure measuresB. Walking or reading a book for half an hour three times a week and doing nothing.C. Having blood pressure measured at the beginning of the study and having blood pressure measuredat the end of the dayD. Walking for half an hour three times a week and reading a book for half an hour three times a weekC. Option 24. Suppose the mean and standard deviation of the GPA's of all currently registered students at acollege are mu = 2.70 and sigma = 0.50. The z-scores of the GPA's of two students, Antonio andBeatrice, are z = - 0.62 and z = 1.28 respectively. What is the GPA of Beatrice? *A. 2.39В. 2.34С. 3.34D. 3.39

Accepted Answer

Given that

Observation:
XX
X^2X2

1
57
3249

2
64
4096

3
43
1849

4
67
4489

5
49
2401

6…

1. Find the standard deviation for the following data:57, 64, 43, 67, 49, 59, 44, 47, 61, 59 (answer in 2 dp)* A. 8.16 B. 8.18 C. 8.13 D. 8.20